In an effort to go paperless (ok, more paperless than I am now) I’m seriously contemplating the Fujitsu ScanSnap S300M. I’ve been burned in the past with scanners. The hardware seems to last for ever, but the drivers leave you stranded with each major OS upgrade. I suspect this might happen with this scanner too, but at least it might see more usage than the occasional scan of an old photo.
For larger volumes of paper to scan, consider the Fujitsu ScanSnap S1500M Instant PDF Sheet-Fed Scanner for the Macintosh for around $400.